Hey all,
I was driving my '05 zhp 330ci down a very smooth road on my way home from work and I noticed a low hum from the engine getting louder and louder. Turned down the must and slowed down and noticed that the engine had a much rougher and lower sounding idle than before...
Curious...what could be the cause?
It's hard to explain the sound so I took a couple vids. Needless to say I will be limping it to the mechanic tomorrow.
https://youtu.be/yxebmRwn2sw
https://youtu.be/ewxOy3Y21tc
https://youtu.be/t4DzDSqcqyQ
Any help is appreciated !!
Thank you
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